Salicylic acid-induced flavonoid accumulation in Ginkgo biloba leaves is dependent on red and far-red light
Salicylic acid-induced flavonoid accumulation in Ginkgo biloba leaves is dependent on red and far-red light
复制标题
水杨酸诱导的银杏叶中黄酮类化合物的积累依赖于红光和远红光
DOI：
10.1016/j.indcrop.2018.03.044
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发表时间：
2018-08-01
影响因子：
5.9
通讯作者：
Xu, Maojun
中科院分区：
文献类型：
--
作者：
Ni, Jun;Dong, Lixiang;Xu, Maojun
黄酮类化合物在植物免疫反应中发挥着重要作用，但银杏免疫反应过程中黄酮类化合物积累的分子机制和影响因素尚不清楚。在这项研究中，收获后在黑暗中培养的银杏叶用水杨酸（SA）进行处理。转录组分析和总黄酮测量显示叶子中的黄酮生物合成和积累减少。在幼苗、幼树和成年树上进行的实验表明，用SA处理后，在光照条件下类黄酮含量增加，但在黑暗条件下含量降低。对各个黄酮类化合物的详细分析表明，尽管有些黄酮类化合物的含量显示出不同的变化趋势，但大多数含量都发生了类似的变化。单色光实验表明，SA 诱导类黄酮积累需要红光和远红光，而不是蓝光。研究结果阐明了光在SA诱导的类黄酮积累中的重要性，为银杏相关制药行业提供了有价值的信息。
Flavonoids play important roles in plant immune responses, but the molecular mechanism and influencing factors on flavonoid accumulation during Ginkgo immune responses are largely unknown. In this research, post-harvest Ginkgo leaves cultured in the dark were treated with salicylic acid (SA). A transcriptome analysis and total flavonoid measurement showed decreased flavonoid biosynthesis and accumulation in leaves. Experiments carried out in seedlings, young and adult trees, showed increased flavonoid content under light conditions but decreased content under dark conditions after treatment with SA. A detailed analysis of individual flavonoids showed similar changes for most of their contents, although some showed different change trends. Single-colored light experiments revealed that red and far-red light, but not blue light, were required in SA-induced flavonoid accumulation. The results clarified the importance of light in SA-induced flavonoid accumulation and provided valuable information to the Ginkgo related pharmaceutical industry.